The Change in Free Energy for a Reaction $\Delta$ G, Depends on the Stoichiometric Coefficients Used in Writing the Depends

question 77

Multiple Choice

The change in free energy for a reaction, $\Delta$ G, depends on the stoichiometric coefficients used in writing the reaction, but cell potentials, E, do not depend on these coefficients.Which statement accounts for this difference?

• A)These quantities \(\Delta\)G and E) are not related, so this difference is not an issue.
• B)The free-energy change is defined for general reactions, and the electromotive force is defined for electrochemical reactions, so this difference is not an issue.
• C)The difference is not relevant because the units differ: kJ/mol for \(\Delta\)G, and V for E.
• D)The change in free energy depends on both the reaction and the amount of material reacting, while the cell potential depends only on the reaction.
• E)The statement is false.\(\Delta\)G does not depend on the stoichiometric coefficients.

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